江西九岭中元古代地层变形变质特征及其演化序列--《前寒武纪研究进展》1997年02期

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^ktq@Hb;?0【摘要】:江西九岭地区位于扬子板块东南部,发育的中元古代地层为一大套以砂泥质为主、含少量火山物质的复理石建造。经历了多期变形变质作用,在地质体中留下了丰富的地质事件信息。本文对这些信息进行了综合分析,阐述了它们的基本特征,探讨其内在联系和相互关系及其演化过程,主要论述了褶皱变形构造、韧性剪切带、脆性变形构造、构造变形与变质作用的关系。在此基础上,将其变形变质事件的演化序列划分为:四堡一晋宁变形变质构造期,加里东变形变质构造期,海西─印支─燕山─喜山变形变质构造期。水利论文bub%q6ms

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;M5L`d {%?0中元古代地层 变形变质 演化序列 江西九岭水利论文;uAwi5DC

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,^`B4e4{ A&@%U/?(X0江西省九岭地区位处扬子板块东南部,俗称“九岭造山带”。区内广泛分布的中元古代地层为一套厚度较大、岩性单一的砂泥质为主,夹少量凝灰质(在罗城一宜丰一带夹有古火山岩系)的复理石建造岩系。经过多期变形变质作用,在地质体中留下了丰富的地质事件信息。笔者在该区进水利论文bObP0Sy3Z

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